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Post subject: Super-Sonic Twin 100 (FSR) Tube chart?
Posted: Tue Apr 30, 2019 12:43 am
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Joined: Mon Apr 29, 2019 12:32 pm
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Hi,
I recently got an amazing deal on a rare Super Sonic Twin FSR (Black and Gold edition) last weekend, and it sounds absolutely amazing! Mind blowing really.

EDIT: Topic got so long to be activated that I found the tube chart for the Supersonic Twin!

But now that I'm more familiar with the amp, even with ALL the tubes being changed, I noticed the following syndromes that most people face too I see:

Large pops when stomping the FX on the footswitch, takes 4, 5 tries then disappears completely.
The footswitch needs to be connected to the amp, otherwise very large hum.
Amps makes more noise when the FX is selected (no pedal going thru, just a jumper cable)
Reverb still has a tiny hiss (need to change the RCA cable?)
And annoying latency going from the vintage channel to the burn channel. It's audible and cuts the notes I'm playing!

Since I got the amp so damn cheap and I'm a pedal guy, the amp is damn perfect for my needs, but if I can make it any better then I'd be curious if anyone has any advice? Or if it's possible to repair everything at a tech?

Going to try a 12AY7 in v4 for the taming hum (?), but haven't got any right now.


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Post subject: Re: Super-Sonic Twin 100 (FSR) Tube chart?
Posted: Tue May 07, 2019 1:36 am
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Joined: Fri Feb 05, 2010 4:31 am
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Location: Province de Québec, Canada
" Large pops when stomping the FX on the footswitch, takes 4, 5 tries then disappears completely. "

Look it is because a capacitor are charging in circuit ; normal IMO
____________
Hum with no FS ; Look it is a Midi socket ( 6 pins) ; bad ground ?
____________
Reverb still has a tiny hiss (need to change the RCA cable?)
Could be a more reverb tube, V5 12AT7 or / and V6 12AX7
Clean RCA plugs .
Try reverb tank outside the cab; speaker's magnet can induce noise in the tank


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